Analysis

  • max time kernel
    56s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2023 23:07

General

  • Target

    11f44531fb088d31307d87b01e8eabff/research-1646684671.xls

  • Size

    648KB

  • MD5

    b775cd8be83696ca37b2fe00bcb40574

  • SHA1

    60c8a9fdf2b24f8fb4913d4745a8557df5ff8e07

  • SHA256

    1df68d55968bb9d2db4d0d18155188a03a442850ff543c8595166ac6987df820

  • SHA512

    5ad4da8582bec3cc545e322cad2e356f59c4bfa5fe4ca90c0e781dd0e63a7aefbcc27b4045583232e4fdccffbc2bceb832b8d8e9ec3c070cf4b6559ca3c99a72

  • SSDEEP

    6144:Hknl9oBdySAx76F6XeyTVtW/9Ny9ABnl5/PBgxOHjuM9Mn:jl5/WxIji

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://nws.visionconsulting.ro/N1G1KCXA/dot.html

xlm40.dropper

https://royalpalm.sparkblue.lk/vCNhYrq3Yg8/dot.html

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\11f44531fb088d31307d87b01e8eabff\research-1646684671.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2680
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -s ..\iroto.dll
      2⤵
      • Process spawned unexpected child process
      PID:2592
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -s ..\iroto1.dll
      2⤵
      • Process spawned unexpected child process
      PID:2532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2680-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2680-1-0x0000000072B5D000-0x0000000072B68000-memory.dmp

    Filesize

    44KB

  • memory/2680-2-0x0000000072B5D000-0x0000000072B68000-memory.dmp

    Filesize

    44KB